It's a 2015 film that explains why common sense never prevails. Why the views of a staggering percentage of scientists are discounted. In the end, it's the result of a handful of billionaires, greedy corporations, and an accommodating media.
They follow the template of the successful cigarette campaign that cast doubt and delayed the inevitable some 50 years later. As one could imagine, it's been used in just about any major industry and even to start recent wars.
If only we could tear it all down and start over again.